The single-point load cell is the most common load cell on the market.

　　In the early 1980s, the single-point load cell used a multi-beam structure with low appearance and small material ratio in order to cope with the contradictions of the requirements of commercial electronic price computing scales (small range, high rigidity, and high precision). . The Eρ product is small, the yield rate is high, the specific strength is large, the plasticity is good, and the low-temperature performance is good. At the same time, there is also 2A12 aluminum alloy with a low modulus of elasticity and good machining performance. Subsequently, the single point load cell with various structural forms such as aluminum alloy parallel beams, center beams, and center rings was developed. Its mechanical characteristic is the bending stress (or normal stress) produced by the combination of the upper-stress beam and the flexible beam of the elastic element. Although bending stresses are used, multiple parallel beams have their mechanical properties. Therefore, the change of the loading point of the elastic element is less sensitive to the output.

　　In other words, the structure of bending stress has the structural characteristics of shear stress.

　　Therefore, single point load cell has been widely used in electronic price calculation scales and electronic portable platforms and platform scales. Similar to the shear elastic element, the load point change of the elastic element is less sensitive to the output. In other words, the structure of bending stress has the structural characteristics of shear stress. Therefore, single-point load cells have been widely used in electronic price calculation scales and electronic portable platforms and platform scales.

　　Similar to the shear elastic element, the load point change of the elastic element is less sensitive to the output. In other words, the structure of bending stress has the structural characteristics of shear stress. Therefore, single-point load cells have been widely used in electronic price calculation scales and electronic portable platforms and platform scales. Similar to the shear elastic element load cell, the normal stress parallel beam elastic element has formed a new development trend. Various elastic elements with parallel beams are shown in Figure 1.

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